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</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/operator_arith.html" title="cpp/numeric/valarray/operator arith"><span class="t-lines"><span>valarray::operator+</span><span>valarray::operator-</span><span>valarray::operator~</span><span>valarray::operator!</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/operator_arith2.html" title="cpp/numeric/valarray/operator arith2"><span class="t-lines"><span>valarray::operator+=</span><span>valarray::operator-=</span><span>valarray::operator*=</span><span>valarray::operator/=</span><span>valarray::operator%=</span><span>valarray::operator&amp;=</span><span>valarray::operator|=</span><span>valarray::operator^=</span><span>valarray::operator&lt;&lt;=</span><span>valarray::operator&gt;&gt;=</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5">非成员函数</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/swap2.html" title="cpp/numeric/valarray/swap2"><span class="t-lines"><span>swap</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/begin2.html" title="cpp/numeric/valarray/begin2"><span class="t-lines"><span>begin</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/end2.html" title="cpp/numeric/valarray/end2"><span class="t-lines"><span>end</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/abs.html" title="cpp/numeric/valarray/abs"><span class="t-lines"><span>abs</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/exp.html" title="cpp/numeric/valarray/exp"><span class="t-lines"><span>exp</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/log.html" title="cpp/numeric/valarray/log"><span class="t-lines"><span>log</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/log10.html" title="cpp/numeric/valarray/log10"><span class="t-lines"><span>log10</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/pow.html" title="cpp/numeric/valarray/pow"><span class="t-lines"><span>pow</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/sqrt.html" title="cpp/numeric/valarray/sqrt"><span class="t-lines"><span>sqrt</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/sin.html" title="cpp/numeric/valarray/sin"><span class="t-lines"><span>sin</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/cos.html" title="cpp/numeric/valarray/cos"><span class="t-lines"><span>cos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/tan.html" title="cpp/numeric/valarray/tan"><span class="t-lines"><span>tan</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/asin.html" title="cpp/numeric/valarray/asin"><span class="t-lines"><span>asin</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/acos.html" title="cpp/numeric/valarray/acos"><span class="t-lines"><span>acos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/atan.html" title="cpp/numeric/valarray/atan"><span class="t-lines"><span>atan</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/atan2.html" title="cpp/numeric/valarray/atan2"><span class="t-lines"><span>atan2</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/sinh.html" title="cpp/numeric/valarray/sinh"><span class="t-lines"><span>sinh</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/cosh.html" title="cpp/numeric/valarray/cosh"><span class="t-lines"><span>cosh</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/tanh.html" title="cpp/numeric/valarray/tanh"><span class="t-lines"><span>tanh</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/operator_arith3.html" title="cpp/numeric/valarray/operator arith3"><span class="t-lines"><span>operator*</span><span>operator/</span><span>operator%</span><span>operator+</span><span>operator-</span><span>operator^</span><span>operator&amp;</span><span>operator|</span><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span><span>operator&amp;&amp;</span><span>operator||</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/operator_cmp.html" title="cpp/numeric/valarray/operator cmp"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&gt;</span><span>operator&lt;=</span><span>operator&gt;=</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5">辅助类</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/slice_array.html" title="cpp/numeric/valarray/slice array"><span class="t-lines"><span>slice_array</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/gslice_array.html" title="cpp/numeric/valarray/gslice array"><span class="t-lines"><span>gslice_array</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/indirect_array.html" title="cpp/numeric/valarray/indirect array"><span class="t-lines"><span>indirect_array</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/slice.html" title="cpp/numeric/valarray/slice"><span class="t-lines"><span>slice</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/gslice.html" title="cpp/numeric/valarray/gslice"><span class="t-lines"><span>gslice</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="valarray/mask_array.html" title="cpp/numeric/valarray/mask array"><span class="t-lines"><span>mask_array</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> <a href="valarray/deduction_guides.html" title="cpp/numeric/valarray/deduction guides">推导指引</a><span class="t-mark-rev t-since-cxx17">(C++17)</span></td></tr>
</table></div><div></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>定义于头文件 <code><a href="../header/valarray.html" title="cpp/header/valarray">&lt;valarray&gt;</a></code>
 </div></td>
<td></td>
<td></td>
</tr>
<tr class="t-dcl">
<td class="t-dcl-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> T <span class="sy1">&gt;</span><br>
<span class="kw1">class</span> valarray<span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad">  </td>
<td class="t-dcl-nopad">  </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p><span class="t-lc"><strong class="selflink">std::valarray</strong></span> 是表示并操作值数组的类。它支持逐元素数学运算与多种形式的广义下标运算符、切片及间接访问。
</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
<p><span class="t-lc"><strong class="selflink">std::valarray</strong></span> 及帮助类定义为免除某些形式的别名使用，从而允许这些类上的操作被优化得类似 C 程序语言中关键词 <a href="../../c/language/restrict.html" title="c/language/restrict">restrict</a> 的效果。而且，接收 <code>valarray</code> 参数的函数和运算符允许返回代理对象，以使得编译器将诸如 <span class="t-c"><span class="mw-geshi cpp source-cpp">v1 <span class="sy1">=</span> a<span class="sy2">*</span>v2 <span class="sy2">+</span> v3<span class="sy4">;</span></span></span> 的表达式优化成执行 <span class="t-c"><span class="mw-geshi cpp source-cpp">v1<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1">=</span> a<span class="sy2">*</span>v2<span class="br0">[</span>i<span class="br0">]</span> <span class="sy2">+</span> v3<span class="br0">[</span>i<span class="br0">]</span><span class="sy4">;</span></span></span> 的单个循环，避免任何临时量或多趟运算。然而，<a href="https://en.wikipedia.org/wiki/Expression_templates" class="extiw" title="enwiki:Expression templates">表达式模板</a>使得同样的优化技巧对任何 C++ 容器可用，而数值库的主流因灵活性偏好表达式模板甚于 valarray 。某些 C++ 标准库实现使用表达式模板以实现 <code>std::valarray</code> 上的高效运算（例如 GNU libstdc++ 与 LLVM libc++ ）。只有少数库进一步优化 valarray ，例如 <a rel="nofollow" class="external text" href="https://software.intel.com/en-us/node/684140">Intel Integrated Performance Primitives</a> 。
</p>
<h3><span class="mw-headline" id=".E6.A8.A1.E6.9D.BF.E5.BD.A2.E5.8F.82">模板形参</span></h3>
<table class="t-par-begin">


<tr class="t-par">
<td>  T
</td>
<td> -
</td>
<td>   元素的类型。类型必须满足<a href="../named_req/NumericType.html" title="cpp/named req/NumericType"><i>数值类型</i> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(NumericType)</span> </a>要求
</td></tr></table>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">成员类型</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc-sep">
<td colspan="2">  
</td></tr>
<tr class="t-dsc-hitem">
<td>  成员类型
</td>
<td>  定义
</td></tr>


<tr class="t-dsc">
<td>  <code>value_type</code>
</td>
<td>  <code>T</code>
</td></tr>
</table>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">成员函数</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><a href="valarray/valarray.html" title="cpp/numeric/valarray/valarray"> <span class="t-lines"><span>(构造函数)</span></span></a></div></div>
</td>
<td>  构造新的数值数组 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><a href="valarray/~valarray.html" title="cpp/numeric/valarray/~valarray"> <span class="t-lines"><span>(析构函数)</span></span></a></div></div>
</td>
<td>  析构数值数组 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator%3D.html" title="cpp/numeric/valarray/operator="> <span class="t-lines"><span>operator=</span></span></a></div></div>
</td>
<td>   为内容赋值 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator_at.html" title="cpp/numeric/valarray/operator at"> <span class="t-lines"><span>operator[]</span></span></a></div></div>
</td>
<td>   获取/设置 valarray 数组元素、切片或掩码 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator_arith.html" title="cpp/numeric/valarray/operator arith"> <span class="t-lines"><span>operator+</span><span>operator-</span><span>operator~</span><span>operator!</span></span></a></div></div>
</td>
<td>   对 valarray 的每个元素运用一元算术运算符 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator_arith2.html" title="cpp/numeric/valarray/operator arith2"> <span class="t-lines"><span>operator+=</span><span>operator-=</span><span>operator*=</span><span>operator/=</span><span>operator%=</span><span>operator&amp;=</span><span>operator|=</span><span>operator^=</span><span>operator&lt;&lt;=</span><span>operator&gt;&gt;=</span></span></a></div></div>
</td>
<td>  应用复合赋值运算符到 valarray 的每个元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/swap.html" title="cpp/numeric/valarray/swap"> <span class="t-lines"><span>swap</span></span></a></div></div>
</td>
<td>  与另一 valarray 交换 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/size.html" title="cpp/numeric/valarray/size"> <span class="t-lines"><span>size</span></span></a></div></div>
</td>
<td>   返回valarray的大小 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/resize.html" title="cpp/numeric/valarray/resize"> <span class="t-lines"><span>resize</span></span></a></div></div>
</td>
<td>  更改 valarray 的大小 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/sum.html" title="cpp/numeric/valarray/sum"> <span class="t-lines"><span>sum</span></span></a></div></div>
</td>
<td>  计算所有元素的和 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/min.html" title="cpp/numeric/valarray/min"> <span class="t-lines"><span>min</span></span></a></div></div>
</td>
<td>  返回最小元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/max.html" title="cpp/numeric/valarray/max"> <span class="t-lines"><span>max</span></span></a></div></div>
</td>
<td>   返回最大的元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/shift.html" title="cpp/numeric/valarray/shift"> <span class="t-lines"><span>shift</span></span></a></div></div>
</td>
<td>  以填入零的方式移动 valarray 的元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/cshift.html" title="cpp/numeric/valarray/cshift"> <span class="t-lines"><span>cshift</span></span></a></div></div>
</td>
<td>  循环移动 valarray 的元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/apply.html" title="cpp/numeric/valarray/apply"> <span class="t-lines"><span>apply</span></span></a></div></div>
</td>
<td>  将函数应用到 valarray 的每个元素 <br> <span class="t-mark">(公开成员函数)</span> </td></tr>
</table>
<h3><span class="mw-headline" id=".E9.9D.9E.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">非成员函数</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/swap2.html" title="cpp/numeric/valarray/swap2"> <span class="t-lines"><span>std::swap<span class="t-dsc-small">(std::valarray)</span></span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   特化 <span class="t-lc"><a href="../algorithm/swap.html" title="cpp/algorithm/swap">std::swap()</a></span> 算法 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/begin2.html" title="cpp/numeric/valarray/begin2"> <span class="t-lines"><span>std::begin<span class="t-dsc-small">(std::valarray)</span></span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   特化的 <span class="t-lc"><a href="../iterator/begin.html" title="cpp/iterator/begin">std::begin</a></span>  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/end2.html" title="cpp/numeric/valarray/end2"> <span class="t-lines"><span>std::end<span class="t-dsc-small">(std::valarray)</span></span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div>
</td>
<td>   特化的 <span class="t-lc"><a href="../iterator/end.html" title="cpp/iterator/end">std::end</a></span>  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator_arith3.html" title="cpp/numeric/valarray/operator arith3"> <span class="t-lines"><span>operator+</span><span>operator-</span><span>operator*</span><span>operator/</span><span>operator%</span><span>operator&amp;</span><span>operator|</span><span>operator^</span><span>operator&lt;&lt;</span><span>operator&gt;&gt;</span><span>operator&amp;&amp;</span><span>operator||</span></span></a></div></div>
</td>
<td>   对两个 valarray 的每个元素，或一个 valarray 的每个元素和一个值运用二元运算符  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/operator_cmp.html" title="cpp/numeric/valarray/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator&lt;</span><span>operator&lt;=</span><span>operator&gt;</span><span>operator&gt;=</span></span></a></div></div>
</td>
<td>   比较两个 valarrays，或比较一个 valarray 和一个值  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/abs.html" title="cpp/numeric/valarray/abs"> <span class="t-lines"><span>abs<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">abs</span></span></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E6.8C.87.E6.95.B0.E5.87.BD.E6.95.B0">  指数函数 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/exp.html" title="cpp/numeric/valarray/exp"> <span class="t-lines"><span>exp<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/exp.html" title="cpp/numeric/math/exp">std::exp</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/log.html" title="cpp/numeric/valarray/log"> <span class="t-lines"><span>log<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/log.html" title="cpp/numeric/math/log">std::log</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/log10.html" title="cpp/numeric/valarray/log10"> <span class="t-lines"><span>log10<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/log10.html" title="cpp/numeric/math/log10">std::log10</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E5.B9.82.E5.87.BD.E6.95.B0">  幂函数 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/pow.html" title="cpp/numeric/valarray/pow"> <span class="t-lines"><span>pow<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/pow.html" title="cpp/numeric/math/pow">std::pow</a></span> 到二个 valarray 或一个 valarray 与一个值 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/sqrt.html" title="cpp/numeric/valarray/sqrt"> <span class="t-lines"><span>sqrt<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/sqrt.html" title="cpp/numeric/math/sqrt">std::sqrt</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E4.B8.89.E8.A7.92.E5.87.BD.E6.95.B0">  三角函数 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/sin.html" title="cpp/numeric/valarray/sin"> <span class="t-lines"><span>sin<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/sin.html" title="cpp/numeric/math/sin">std::sin</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/cos.html" title="cpp/numeric/valarray/cos"> <span class="t-lines"><span>cos<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/cos.html" title="cpp/numeric/math/cos">std::cos</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/tan.html" title="cpp/numeric/valarray/tan"> <span class="t-lines"><span>tan<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/tan.html" title="cpp/numeric/math/tan">std::tan</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/asin.html" title="cpp/numeric/valarray/asin"> <span class="t-lines"><span>asin<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/asin.html" title="cpp/numeric/math/asin">std::asin</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/acos.html" title="cpp/numeric/valarray/acos"> <span class="t-lines"><span>acos<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/acos.html" title="cpp/numeric/math/acos">std::acos</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/atan.html" title="cpp/numeric/valarray/atan"> <span class="t-lines"><span>atan<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/atan.html" title="cpp/numeric/math/atan">std::atan</a></span> 到 valarray 的每个元素 <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/atan2.html" title="cpp/numeric/valarray/atan2"> <span class="t-lines"><span>atan2<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>  应用函数 <span class="t-lc"><a href="math/atan2.html" title="cpp/numeric/math/atan2">std::atan2</a></span> 到一个 valarray 和一个值 <br> <span class="t-mark">(函数模板)</span> </td></tr>


<tr>
<td colspan="2"> <h5> <span class="mw-headline" id=".E5.8F.8C.E6.9B.B2.E5.87.BD.E6.95.B0">  双曲函数 </span></h5>
</td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/sinh.html" title="cpp/numeric/valarray/sinh"> <span class="t-lines"><span>sinh<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>   在 valarray 的每个元素上调用 <span class="t-lc"><a href="math/sinh.html" title="cpp/numeric/math/sinh">std::sinh</a></span> 函数  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/cosh.html" title="cpp/numeric/valarray/cosh"> <span class="t-lines"><span>cosh<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>   在 valarray 的每个元素上调用 <span class="t-lc"><a href="math/cosh.html" title="cpp/numeric/math/cosh">std::cosh</a></span> 函数  <br> <span class="t-mark">(函数模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/tanh.html" title="cpp/numeric/valarray/tanh"> <span class="t-lines"><span>tanh<span class="t-dsc-small">(std::valarray)</span></span></span></a></div></div>
</td>
<td>   在 valarray 的每个元素上调用 <span class="t-lc"><a href="math/tanh.html" title="cpp/numeric/math/tanh">std::tanh</a></span> 函数  <br> <span class="t-mark">(函数模板)</span> </td></tr>
</table>
<h3><span class="mw-headline" id=".E8.BE.85.E5.8A.A9.E7.B1.BB">辅助类</span></h3>
<table class="t-dsc-begin">

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/slice.html" title="cpp/numeric/valarray/slice"> <span class="t-lines"><span>slice</span></span></a></div></div>
</td>
<td>   valarray 的 BLAS 式切片：起始下标、长度、跨度 <br> <span class="t-mark">(类)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/slice_array.html" title="cpp/numeric/valarray/slice array"> <span class="t-lines"><span>slice_array</span></span></a></div></div>
</td>
<td>   到 valarray 应用 slice 后的子集的代理  <br> <span class="t-mark">(类模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/gslice.html" title="cpp/numeric/valarray/gslice"> <span class="t-lines"><span>gslice</span></span></a></div></div>
</td>
<td>  valarray 的通用切片：起始下标、长度集、步幅集 <br> <span class="t-mark">(类)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/gslice_array.html" title="cpp/numeric/valarray/gslice array"> <span class="t-lines"><span>gslice_array</span></span></a></div></div>
</td>
<td>   valarray 应用 gslice 后的子集的代理 <br> <span class="t-mark">(类模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/mask_array.html" title="cpp/numeric/valarray/mask array"> <span class="t-lines"><span>mask_array</span></span></a></div></div>
</td>
<td>  到应用布尔掩码  <code>operator[]</code> 后的 valarray 子集的代理 <br> <span class="t-mark">(类模板)</span> </td></tr>

<tr class="t-dsc">
<td>  <div class="t-dsc-member-div"><div><a href="valarray/indirect_array.html" title="cpp/numeric/valarray/indirect array"> <span class="t-lines"><span>indirect_array</span></span></a></div></div>
</td>
<td>  到应用间接 <code>operator[]</code> 后的 valarray 子集的代理。 <br> <span class="t-mark">(类模板)</span> </td></tr>
</table>
<h3><span class="mw-headline" id=".E6.8E.A8.E5.AF.BC.E6.8C.87.E5.BC.95.28C.2B.2B17_.E8.B5.B7.29"><a href="valarray/deduction_guides.html" title="cpp/numeric/valarray/deduction guides">推导指引</a><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></span></h3>

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